package com.changgou.user.dao;

import com.changgou.user.pojo.Footprint;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Select;
import tk.mybatis.mapper.common.Mapper;

import java.util.Date;

public interface FootprintMapper extends Mapper<Footprint> {

    @Select("select min(date) from tb_footprint")
    Date minDate();

}
